1 files changed, 31 insertions, 6 deletions

diff --git a/linden/indra/llrender/llfont.cpp b/linden/indra/llrender/llfont.cpp
index ed787e0..b07d0d6 100644
--- a/linden/indra/llrender/llfont.cpp
+++ b/linden/indra/llrender/llfont.cpp
@@ -31,10 +31,11 @@
 #include "llfont.h"
 
 // Freetype stuff
-#if LL_LINUX   // I had to do some work to avoid the system-installed FreeType headers... --ryan.
-#include "llfreetype2/freetype/ft2build.h"
+#if !defined(LL_LINUX) || defined(LL_STANDALONE)
+# include <ft2build.h>
 #else
-#include <ft2build.h>
+// I had to do some work to avoid the system-installed FreeType headers... --ryan.
+# include "llfreetype2/freetype/ft2build.h"
 #endif
 
 // For some reason, this won't work if it's not wrapped in the ifdef
@@ -178,11 +179,20 @@ F32 LLFont::getDescenderHeight() const
 
 BOOL LLFont::loadFace(const std::string& filename, const F32 point_size, const F32 vert_dpi, const F32 horz_dpi, const S32 components, BOOL is_fallback)
 {
+        // Don't leak face objects.  This is also needed to deal with
+        // changed font file names.
+        if (mFTFace)
+        {
+                FT_Done_Face(mFTFace);
+                mFTFace = NULL;
+        }
+
         int error;
+
         error = FT_New_Face( gFTLibrary,
-                         filename.c_str(),
-                         0,
-                         &mFTFace );
+                                                 filename.c_str(),
+                                                 0,
+                                                 &mFTFace );
 
     if (error)
         {
@@ -326,6 +336,9 @@ BOOL LLFont::hasGlyph(const llwchar wch) const
 
 BOOL LLFont::addChar(const llwchar wch)
 {
+        if (mFTFace == NULL)
+                return FALSE;
+
         llassert(!mIsFallback);
         //lldebugs << "Adding new glyph for " << wch << " to font" << llendl;
 
@@ -378,6 +391,9 @@ void LLFont::insertGlyphInfo(llwchar wch, LLFontGlyphInfo* gi) const
 
 BOOL LLFont::addGlyphFromFont(LLFont *fontp, const llwchar wch, const U32 glyph_index)
 {
+        if (mFTFace == NULL)
+                return FALSE;
+
         llassert(!mIsFallback);
         fontp->renderGlyph(glyph_index);
         S32 width = fontp->mFTFace->glyph->bitmap.width;
@@ -501,6 +517,9 @@ BOOL LLFont::addGlyph(const llwchar wch, const U32 glyph_index)
 
 F32 LLFont::getXAdvance(const llwchar wch) const
 {
+        if (mFTFace == NULL)
+                return 0.0;
+
         llassert(!mIsFallback);
         U32 glyph_index;
 
@@ -569,6 +588,9 @@ F32 LLFont::getXAdvance(const llwchar wch) const
 
 void LLFont::renderGlyph(const U32 glyph_index)
 {
+        if (mFTFace == NULL)
+                return;
+
         int error = FT_Load_Glyph(mFTFace, glyph_index, FT_LOAD_DEFAULT );
         llassert(!error);
 
@@ -579,6 +601,9 @@ void LLFont::renderGlyph(const U32 glyph_index)
 
 F32 LLFont::getXKerning(const llwchar char_left, const llwchar char_right) const
 {
+        if (mFTFace == NULL)
+                return 0.0;
+
         llassert(!mIsFallback);
         LLFontGlyphInfo* left_glyph_info = get_if_there(mCharGlyphInfoMap, char_left, (LLFontGlyphInfo*)NULL);
         U32 left_glyph = left_glyph_info ? left_glyph_info->mGlyphIndex : 0;